It seems, however, that in doing so, whatever utility he was using told the entire drive it was all Windows partitions and I could no longer boot the device at all, neither to Windows or Mac. He ran a disk scan that found a number of bad sectors but this had no effect so he took it upon himself to delete the Windows partitions.

He did and had no more success than I did. My son has started a budding business in IT and is far more Windows proficient than I so I asked him to take a look at it. It went into a repair mode, couldn't repair, couldn't recover from the last System Recovery point, nothing. Once it was done it went to restart but failed to do so. I only boot to Windows about every month or so, so this can take a while. (I know there's multiple threads on similar topics but they all appeared to be old and I'm tired of being chastised for necrothreading.)Ī while back I booted into my Windows 10 Bootcamp partition and allowed it to update things. Three partitions on the internal drive: macOS (HFS+ Journaled), Windows (Bootcamp) and a separate NTFS partition for Windows applications.

How to rebuild a mac